212101100211012 has 24 divisors (see below), whose sum is σ = 494905292529312. Its totient is φ = 70699977398400.

The previous prime is 212101100210981. The next prime is 212101100211023. The reversal of 212101100211012 is 210112001101212.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 212101100210982 and 212101100211000.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46393189 + ... + 50759532.

It is an arithmetic number, because the mean of its divisors is an integer number (20621053855388).

Almost surely, 2^{212101100211012} is an apocalyptic number.

It is an amenable number.

212101100211012 is an abundant number, since it is smaller than the sum of its proper divisors (282804192318300).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

212101100211012 is a wasteful number, since it uses less digits than its factorization.

212101100211012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97334659 (or 97334657 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 212101100211012 its reverse (210112001101212), we get a palindrome (422213101312224).

The spelling of 212101100211012 in words is "two hundred twelve trillion, one hundred one billion, one hundred million, two hundred eleven thousand, twelve".